MIL-101(Fe), despite its high surface area and adsorption capacity, suffers from rapid electron-hole recombination that limits photocatalytic efficiency. To overcome this challenge, we engineered a C3N4 quantum dots (QDs) /MIL-101(Fe) composite via a facile loading method. Comprehensive characterization by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET) verified the effective incorporation of C3N4 QDs, which significantly suppressed charge carrier recombination and enhanced visible-light harvesting. The optimized composite demonstrated superior photocatalytic performance, achieving near-complete degradation of 100 mg/L Congo red within 20 mins under visible light, far exceeding the activity of pristine MIL-101(Fe). This study provides a rational design strategy to improve charge separation in metal-organic framework-based photocatalysts for organic pollutant remediation.
Cite this Article (APA)
Changbo, Z., Junjie, B., Liang, W., Tong, L., Shunshun, Y., Yuguo, Z., Zhenyu, S., Bingke, L., Keliang, W. (2025). Preparation of C3N4 quantum dots sensitized Iron MOF composites to photocatalytically degrade congo red solution. Arabian Journal of Chemistry. https://doi.org/10.25259/ajc_296_2024
